From G. H. Darwin 28 January 1878
Summary
Has been reading Samuel Haughton on geological time ["Notes on physical geology, no. III", Proc. R. Soc. Lond. 26 (1877): 534–46]. It is utter rubbish. Asks whether CD thinks GHD should write a critical note on the subject [see Nature 17 (1878): 509–10].
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | 28 Jan 1878 |
| Classmark: | DAR 210.2: 65 |
| Letter no: | DCP-LETT-11336 |
From G. H. Darwin [before 9 May 1878]
Summary
Recounts some figures relating deaf-mutism and consanguineous marriages.
GHD has failed to be elected to the Royal Society.
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | [before 9 May 1878] |
| Classmark: | DAR 210.2: 66 |
| Letter no: | DCP-LETT-11498 |
From G. H. Darwin [30 June 1878]
Summary
Is frustrated to see, from a paragraph in Nature [18 (1878): 242], that Charles Lagrange has got hold of the same sort of ideas as he has.
Erasmus is unwell.
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | [30 June 1878] |
| Classmark: | DAR 210.2: 67 |
| Letter no: | DCP-LETT-11573 |
From G. H. Darwin [before 11 July 1878]
Summary
Refers to Charles Lagrange, who is working on the same subject as GHD, but in a fundamentally different way.
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | [before 11 July 1878] |
| Classmark: | DAR 210.2: 68 |
| Letter no: | DCP-LETT-11600 |
From G. H. Darwin 12 July 1878
Summary
Sends drawings of specimens [of Thalia] CD requested.
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | 12 July 1878 |
| Classmark: | DAR 209.13: 14–15, DAR 210.2: 69 |
| Letter no: | DCP-LETT-11602 |
From G. H. Darwin 10 October 1878
Summary
Recounts the experiments on Fechner’s law he has found in Helmholz; they are on the smallest perceptible differences of illumination. Describes how to test whether plants’ responses to lights are in accordance with it.
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | 10 Oct 1878 |
| Classmark: | DAR 210.2: 70 |
| Letter no: | DCP-LETT-11722 |
From G. H. Darwin 7 November 1878
Summary
Encloses William Thomson’s report on GHD’s paper. Some of it was written in Rayleigh’s hand.
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | 7 Nov 1878 |
| Classmark: | DAR 210.2: 71, The Royal Society (RR/8/91) |
| Letter no: | DCP-LETT-11738 |
From G. H. Darwin 14 December 1878
Summary
Asks CD if he would screw himself up to inviting A. Newton to Down.
| Author: | George Howard Darwin |
| Addressee: | Charles Robert Darwin |
| Date: | 14 Dec 1878 |
| Classmark: | DAR 210.2: 72 |
| Letter no: | DCP-LETT-11796 |
